SubMenu.vue 模板问题

[DinoRun]

• I have searched the issues of this repository and believe that this is not a duplicate.

Version

1.4.2

Environment

window

Reproduction link

https://github.com/vueComponent/ant-design-vue/blob/master/components/menu/demo/SubMenu.vue

Steps to reproduce

根据路由使用SubMenu.vue生成顶部菜单，点击父级菜单项，子级菜单会收起（隐藏），而使用SubMenu1.vue生成的菜单则不会有这样的问题，

What is expected?

点击父级菜单项，子级菜单应该显示，而不是隐藏；

What is actually happening?

点击父级菜单项，子级列表隐藏，这是不应该的；

[oraant]

确实会有这个bug，当menu的模式选为horizontal时，函数式组件生成的<li>元素，多出了一个click监听器。
这个监听器会导致一点击展开的子菜单，子菜单就会收起来，而非正确的展示孙菜单。

[github-actions]

This issue is stale because it has been open 60 days with no activity. Remove stale label or comment or this will be closed in 7 days

[github-actions]

This issue has been automatically locked since there has not been any recent activity after it was closed. Please open a new issue for related bugs.